SB2026100110 - Link following in lxcfs
Published: October 1, 2026
Security Bulletin ID
SB2026100110
CSH Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Link following (CVE-ID: CVE-2026-100395)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an insecure link following issue when updating the hostname of a cloned container. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.